Cross-sections for resonance production in $$\bar pn$$ annihilation around 2190 MeV centre-of-mass energyannihilation around 2190 MeV centre-of-mass energy

1974 ◽  
Vol 23 (2) ◽  
pp. 209-226 ◽  
Author(s):  
L. Bertanza ◽  
A. Bigi ◽  
R. Casali ◽  
P. Lariccia ◽  
R. Pazzi ◽  
...  
Keyword(s):  
Cross Sections ◽  
Resonance Production ◽  
Centre Of Mass ◽  
Mass Energy

scholarly journals Measurement of dijet cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector

2014 ◽  
Vol 2014 (5) ◽  
Author(s):  
G. Aad ◽  
◽  
T. Abajyan ◽  
B. Abbott ◽  
J. Abdallah ◽  
...  
Keyword(s):  
Cross Sections ◽  
Atlas Detector ◽  
Centre Of Mass ◽  
Mass Energy ◽  
Pp Collisions

scholarly journals Measurements of jet-related observables at the LHC

2015 ◽  
Vol 30 (31) ◽  
pp. 1546004 ◽  
Author(s):  
P. Kokkas
Keyword(s):  
Monte Carlo ◽  
Cross Sections ◽  
Event Shape ◽  
Leading Order ◽  
Centre Of Mass ◽  
Mass Energy ◽  
Perturbative Quantum Chromodynamics ◽  
Perturbative Quantum ◽  
Jet Shapes ◽  
Jet Cross Sections

During the first years of the LHC operation a large amount of jet data was recorded by the ATLAS and CMS experiments. In this review several measurements of jet-related observables are presented, such as multi-jet rates and cross sections, ratios of jet cross sections, jet shapes and event shape observables. All results presented here are based on jet data collected at a centre-of-mass energy of 7 TeV. Data are compared to various Monte Carlo generators, as well as to theoretical next-to-leading-order calculations allowing a test of perturbative Quantum Chromodynamics in a previously unexplored energy region.

scholarly journals Measurement of $$W^{\pm }$$-boson and Z-boson production cross-sections in pp collisions at $$\sqrt{s}=2.76$$ TeV with the ATLAS detector

2019 ◽  
Vol 79 (11) ◽  
Author(s):  
G. Aad ◽  
◽  
B. Abbott ◽  
D. C. Abbott ◽  
O. Abdinov ◽  
...  
Keyword(s):  
Cross Sections ◽  
Z Boson ◽  
Production Cross ◽  
Centre Of Mass ◽  
Mass Energy ◽  
Decay Channels ◽  
Atlas Data ◽  
Full Phase Space ◽  
Systematic Uncertainties ◽  
Detector Acceptance

Abstract The production cross-sections for $$W^{\pm }$$W± and Z bosons are measured using ATLAS data corresponding to an integrated luminosity of 4.0 pb$$^{-1}$$-1 collected at a centre-of-mass energy $$\sqrt{s}=2.76$$s=2.76 TeV. The decay channels $$W \rightarrow \ell \nu $$W→ℓν and $$Z \rightarrow \ell \ell $$Z→ℓℓ are used, where $$\ell $$ℓ can be an electron or a muon. The cross-sections are presented for a fiducial region defined by the detector acceptance and are also extrapolated to the full phase space for the total inclusive production cross-section. The combined (average) total inclusive cross-sections for the electron and muon channels are: $$\begin{aligned} \sigma ^{\text {tot}}_{W^{+}\rightarrow \ell \nu }= & {} 2312 \pm 26\ (\text {stat.})\\&\pm 27\ (\text {syst.}) \pm 72\ (\text {lumi.}) \pm 30\ (\text {extr.})~\text {pb} , \\ \sigma ^{\text {tot}}_{W^{-}\rightarrow \ell \nu }= & {} 1399 \pm 21\ (\text {stat.})\ \pm 17\ (\text {syst.}) \\&\pm 43\ (\text {lumi.}) \pm 21\ (\text {extr.})~\text {pb} , \\ \sigma ^{\text {tot}}_{Z \rightarrow \ell \ell }= & {} 323.4 \pm 9.8\ (\text {stat.}) \pm 5.0\ (\text {syst.})\\&\pm 10.0\ (\text {lumi.}) \pm 5.5 (\text {extr.}) ~\text {pb} . \end{aligned}$$σW+→ℓνtot=2312±26(stat.)±27(syst.)±72(lumi.)±30(extr.)pb,σW-→ℓνtot=1399±21(stat.)±17(syst.)±43(lumi.)±21(extr.)pb,σZ→ℓℓtot=323.4±9.8(stat.)±5.0(syst.)±10.0(lumi.)±5.5(extr.)pb.Measured ratios and asymmetries constructed using these cross-sections are also presented. These observables benefit from full or partial cancellation of many systematic uncertainties that are correlated between the different measurements.

scholarly journals Measurement of cross-sections and asymmetries in e+e− collisions at 130–140 GeV centre-of-mass energy

1996 ◽  
Vol 376 (1-3) ◽  
pp. 232-244 ◽  
Author(s):  
G Alexander ◽  
J Allison ◽  
N Altekamp ◽  
K Ametewee ◽  
K.J Andrson ◽  
...  
Keyword(s):  
Cross Sections ◽  
Centre Of Mass ◽  
Mass Energy

scholarly journals Measurement of cross sections and couplings of the Higgs Boson in bosonic decay channels with the ATLAS detector

2018 ◽  
Vol 182 ◽  
pp. 02013
Author(s):  
Nikita Belyaev
Keyword(s):  
Higgs Boson ◽  
Cross Sections ◽  
Hadron Collider ◽  
Atlas Detector ◽  
Atlas Collaboration ◽  
Standard Model Higgs Boson ◽  
Centre Of Mass ◽  
Mass Energy ◽  
Decay Channels ◽  
The Standard Model

After the discovery of the Higgs boson, the measurement of its properties are of particular importance. In this paper, measurement of the cross sections and couplings of the Higgs boson in bosonic decay channels with the ATLAS detector are presented. Previous measurements of the spin and parity of this new particle, as well as the investigation of its couplings to other SM particles, revealed no significant deviations from the corresponding predictions for the Standard Model Higgs boson. In the years 2015-2017, the centre-of-mass energy √s and the integrated luminosity of the Large Hadron Collider was increased up to 13 TeV and 36.1 fb-1, respectively. With this improvements of the LHC, the properties of recently discovered Higgs boson can be studied in more details. In this paper, latest updates on cross sections and couplings analyses of the Higgs Boson are presented. The discussion will focus on the recent results obtained by the ATLAS collaboration in γγ and 4l Higgs boson decay channels as well as their combination.

Cross sections for 2H(3He, 3He) and 2H(3He, 4He) at 7 to 18 MeV centre-of-mass energy

1972 ◽  
Vol 183 (3) ◽  
pp. 657-665 ◽  
Author(s):  
T.R. King ◽  
Rodman Smythe
Keyword(s):  
Cross Sections ◽  
Centre Of Mass ◽  
Mass Energy

scholarly journals Top FCNC searches at HL-LHC with the CMS experiment

2018 ◽  
Vol 191 ◽  
pp. 02009 ◽  
Author(s):  
Petr Mandrik ◽  
Keyword(s):  
Cross Sections ◽  
Top Quark ◽  
Neutral Current ◽  
Hadron Collider ◽  
Particle Accelerator ◽  
Centre Of Mass ◽  
Mass Energy ◽  
Flavor Change Neutral Current ◽  
Cms Experiment ◽  
Integrated Luminosity

The Large Hadron Collider is the world’s largest and highest centerof- mass energy particle accelerator. During the Phase I operation it is expected that the LHC operated at a centre-of-mass energy of 13 TeV will deliver to the CMS experiment total integrated luminosity of ~300 fb-1 till 2023. The High Luminosity LHC upgrade is expected to run at a centre-of-mass energy of 14 TeV and will allow ATLAS and CMS to collect integrated luminosities of the order of 300 fb-1 per year, and up to 3000 fb-1 during the HL-LHC projected lifetime of ten years. The large expected integrated luminosity enables the exploration of the multi-TeV scale by searches for particles with high masses as well as by investigation of processes with very low cross sections such as Flavor-Change Neutral Current interactions in top quark sector. In this report we present a proposal for the top quark FCNC searches at HL-LHC based on Monte-Carlo simulation of the upgraded CMS detector.

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